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Assessment of wire-frame analysis models of a historical planked timber arch

Fernandez-Cabo, Jose L.; Widmann, Robert; Arce-Blanco, Marina; Crocetti, Roberto LU ; Xavier, Jose and Majano-Majano, Almudena (2015) In Proceedings of the Institution of Civil Engineers 168(9). p.680-694
Abstract
This paper describes theoretical and experimental work undertaken to obtain a structural model for assessment of historical Latin-American vertically laminated planked timber arches, as built by the Spanish, mainly in the seventeenth and eighteenth centuries. Many such arches still stand, and represent an important historical heritage. Following initial historical and construction studies, a structural analysis is being undertaken; the first stage is described here. Two wire frame analysis models are developed and assessed: a finite-element model using elasto-plastic constitutive equations (implemented in SAP2000), and another model using limit analysis. An experimental programme is also conducted. The structure presents elasto-plastic... (More)
This paper describes theoretical and experimental work undertaken to obtain a structural model for assessment of historical Latin-American vertically laminated planked timber arches, as built by the Spanish, mainly in the seventeenth and eighteenth centuries. Many such arches still stand, and represent an important historical heritage. Following initial historical and construction studies, a structural analysis is being undertaken; the first stage is described here. Two wire frame analysis models are developed and assessed: a finite-element model using elasto-plastic constitutive equations (implemented in SAP2000), and another model using limit analysis. An experimental programme is also conducted. The structure presents elasto-plastic behaviour with an important plastic range, which is a relevant and favourable property for a structure. The numerical elasto-plastic model shows good agreement with experimental results for the elastic range and deviations around 60% for the plastic range. The plastic model shows a deviation of around 40%, which is an important outcome at this stage. The models show the key problem of the structure: the transference of the bending moment along planks is poor, restricting its overall load-bearing capacity. Additional tests and more complex material models (including failure in tension perpendicular to the grain), using two-dimensional and three-dimensional finite elements, are now under development to recalibrate the models presented. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
mathematical modelling, timber structures
in
Proceedings of the Institution of Civil Engineers
volume
168
issue
9
pages
680 - 694
publisher
ICE Publishing
external identifiers
  • wos:000365613200006
  • scopus:84940416525
ISSN
0965-0911
DOI
10.1680/jstbu.14.00049
language
English
LU publication?
yes
id
c76a2cab-81be-4ef9-83eb-ee80b8f40c28 (old id 8525937)
date added to LUP
2016-02-17 08:08:14
date last changed
2017-01-01 05:53:10
@article{c76a2cab-81be-4ef9-83eb-ee80b8f40c28,
  abstract     = {This paper describes theoretical and experimental work undertaken to obtain a structural model for assessment of historical Latin-American vertically laminated planked timber arches, as built by the Spanish, mainly in the seventeenth and eighteenth centuries. Many such arches still stand, and represent an important historical heritage. Following initial historical and construction studies, a structural analysis is being undertaken; the first stage is described here. Two wire frame analysis models are developed and assessed: a finite-element model using elasto-plastic constitutive equations (implemented in SAP2000), and another model using limit analysis. An experimental programme is also conducted. The structure presents elasto-plastic behaviour with an important plastic range, which is a relevant and favourable property for a structure. The numerical elasto-plastic model shows good agreement with experimental results for the elastic range and deviations around 60% for the plastic range. The plastic model shows a deviation of around 40%, which is an important outcome at this stage. The models show the key problem of the structure: the transference of the bending moment along planks is poor, restricting its overall load-bearing capacity. Additional tests and more complex material models (including failure in tension perpendicular to the grain), using two-dimensional and three-dimensional finite elements, are now under development to recalibrate the models presented.},
  author       = {Fernandez-Cabo, Jose L. and Widmann, Robert and Arce-Blanco, Marina and Crocetti, Roberto and Xavier, Jose and Majano-Majano, Almudena},
  issn         = {0965-0911},
  keyword      = {mathematical modelling,timber structures},
  language     = {eng},
  number       = {9},
  pages        = {680--694},
  publisher    = {ICE Publishing},
  series       = {Proceedings of the Institution of Civil Engineers},
  title        = {Assessment of wire-frame analysis models of a historical planked timber arch},
  url          = {http://dx.doi.org/10.1680/jstbu.14.00049},
  volume       = {168},
  year         = {2015},
}